I am making an arcane/divine multiclass to later prestige as a mystic theurge. I have 'practices spellcaster' twice, as to have full caster level in both spellcaster classes. My question is if there is something similar I could do so I could advance spells known like my full character level. Or is that an unavoidable drawback with the arcane/divine multiclass-prestigeclass? When I get to lvl 7, I could get the first level of mystic theurge, but is counted as lvl 4 of his both base classes when determining spells known & per level. If there was something to make it Count that as lvl 7 as well, it would truly be super
There is nothing similar to Practiced Spellcaster for spells known/per day and highest spell level. Such a feat would probably be overpowered.
There are ways to enter mystic theurge without three levels burned on each side, i.e. before 6th level. Normally I am strongly opposed to such “early entry” tricks, but in the case of the mystic theurge, they are largely necessary as the mystic theurge is nothing but a trap without them.
You’ll definitely need one level of each class, obviously, so you have something to progress, and you’ll never get that back, unfortunately. So the best you can do is X 1/Y 1/Mystic Theurge. Also note that if you expect your campaign to reach 13th level or beyond, you’re not going to be able to continue progressing both, which is a big ouch. If you expect your campaign to go much beyond there, I strongly recommend against mystic theurge unless your DM houserules you to be able to take more than 10 levels of mystic theurge (and ignores the atrocious epic mystic theurge progression).
For the sake of argument, I’m going to assume you are going for an archivist/wizard/mystic theurge, as this is the best choice available. I assume you take the archivist level(s) first then wizard levels, and that you favor wizard over archivist. In most cases, archivist and wizard could be swapped for any other divine and arcane spellcasting classes, respectively, and order and number of levels is flexible so long as you have one of each and the totals are the same. I’ll note any exceptions.
Mystic Theurge at ECL 3
Improved Sigil (Krau) Illumian: race and 1 feat, ambiguity (Races of Destiny)
An illumian can take Improved Sigil (Krau) to apply a free Heighten Spell to a number of spells. The idea is to get 1st-level spells on each side, and use Krau to make a spell on each side 2nd-level and thus qualify for mystic theurge.
There’s a rule ambiguity here about whether or not being able to cast 1st-level spells from a new class qualifies as a “new level of spells” when you could already cast 1st-level spells. If yes, you can take it at 1st level, e.g. archivist 1, and then take another class, e.g. archivist 1/wizard 1, and switch your chosen spells to be one archivist spell and one wizard spell. Then you qualify for mystic theurge.
If not, you have to take Improved Sigil (Krau) at ECL 3, e.g. archivist 1/wizard 2, so you can pick spells from each from the get-go. Viable, but marginally disappointing.
Precocious Apprentice & Southern Magician: 2 feats, dubious rules (Complete Arcane, Races of Faerûn)
Setting-specific, and within that setting, specific to Mulan humans, which may or may not be problematic depending on whether or not you are playing in the Forgotten Realms.
This approach requires that you take the arcane spellcasting level first.
Precocious Apprentice allows you to cast a single 2nd-level arcane spell. Southern Magician allows you to cast an arcane spell “like” a divine spell (and vice versa), but whether that’s good enough to qualify for mystic theurge is unclear. For what it’s worth, Wizards Customer Service says no.
Note that this, if it works, allows a wizard to qualify for mystic theurge without any divine spellcasting levels at all. This either means the benefit of mystic theurge is wasted, or you get to advance wizard twice as fast as it’s also a divine spellcasting class. Even if your DM is crazy enough to let you, I cannot recommend against that strongly enough.
Sanctum Spell: 2 feats, rather difficult timing requirments (Complete Arcane)
You must either be human or some other bonus-feat-granting race, or be playing in a campaign with the Flaws variant from Unearthed Arcana, if you want to get enough feats in time to do this optimally.
Sanctum Spell requires one metamagic feat, any metamagic feat. Once you have that, you can take Sanctum Spell, which is basically a free single-level Heighten Spell effect if the spell is cast within your sanctum. This means that in order to go from e.g. archivist 1/wizard 1 to archivist 1/wizard 1/mystic theurge 1, and again for getting archivist 1/wizard 1/mystic theurge 2, you have to be in your sanctum during level-up, or get your DM to agree to it based on your potential to cast 2nd-level spells. Good luck.
Earth Spell: 3 feats (Races of Stone)
Earth Spell requires Heighten Spell and Earth Sense, basically allowing you to have a free extra level when using Heighten Spell. Heighten a cantrip and an orison with it, and you get 2nd-level spells on each side. Three feats that early requires Flaws or shenanigans beyond the scope of this answer.
That said, this pretty much just works, which is a big advantage over the previous answers.
Mystic Theurge at ECL 4
This is far easier because it gives us another feat to play with, a feat that can be taken after you have both types of spellcasting.
Improved Sigil (Krau) Illumian: race and 1 feat (Races of Destiny)
Just mentioning this again: if the rules are interpreted against us (which strikes me as the more likely interpretation), Improved Sigil (Krau) becomes an ECL 4 trick rather than ECL 3. Still a good option.
Precocious Apprentice & Alternate Source Spell: 2 feats (Complete Arcane, Dragon vol. 325)
This approach requires that the arcane spellcasting class come first.
Precocious Apprentice gives you a 2nd-level arcane spell, Alternate Source Spell makes it divine. Note that the wording of Alternate Source Spell is far more amenable to this use than Southern Magician, it just requires that you can already cast divine spells. So you go e.g. wizard 2/archivist 1 so you can take it, and use it on your Precocious Apprentice spell.
Still runs into the typical arguments revolving around using Precocious Apprentice this way.
Mystic Theurge at ECL 5
This is easy, because it means you have three levels on one side, and thus native access to 2nd-level spells.
Alternate Source Spell: 1 feat (Dragon vol. 325)
As, e.g., archivist 1/wizard 3, Alternate Source Spell allows your 2nd-level arcane spells to be 2nd-level divine spells, and now mystic theurge can advance both archivist and wizard.
Southern Magician: 1 feat, rules ambiguity (Races of Faerûn)
Compared to Alternate Source Spell, this has the advantage of not being from Dragon, but the disadvantage of having rules that confuse whether or not it actually works, as well as awkward setting requirements. Otherwise, it works pretty much the same way.
Honorable Mention: Early Entry to Arcane Hierophant (Races of the Wild)
Arcane hierophant is a prestige class that advances both druid and an arcane spellcasting class. This is a big deal because between it and mystic theurge, you have 20 levels of dual-progression, answering the big “what now?” question that usually happens when you finish mystic theurge.
The same tricks as above for meeting the arcane hierophant’s spellcasting requirements still work, and taking a single level of druid gets you the Animal Companion, but the Trackless Step requirement is trickier. Nailing that one is actually fairly easy, though: forest gnomes get that as a racial feature.
There is no such thing, and that's the main drawback of being a theurge. There is, however, a way to need way less levels of at least one of the two entry classes, which is becoming able to cast divine spells as arcane spells or vice-versa.
This way (which you can obtain with feats such as Southern Magician or Alternative Spell Source) you need to get three levels in any one class and just one level in the other one (which is not even needed for pre-reqs, but you need it so you have something that mystic theurge can raise).
Another way to abuse mystic theurge is getting levels in ur-priest instead of cleric. While you need at least 2 levels of ur-priest and at least 5 other levels before joining it (which means you'd start the theurge at level 8), the ur-priest casting rapidly catches up.
protected by Brian Ballsun-Stanton♦ Apr 2 '14 at 21:08
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